Question

the de Broglie wavelength of an electron travelling with 10% of velocity of light is equal to ​

Answer 1

║⊕ANSWER⊕║

Velocity of light = 3 ×108m/s

10% of velocity of light = 10100×3×108 m/s=0.3 ×108m/s

h = Planck's constant = 6.63 × 10-34Js

​m = mass of electron = 9.1 × 10-31Kg

 λ= hmv         λ =6.63×10−34Js9.1 ×10−31kg×0.3×108ms−1   = 2.42 × 10−11 m

 = 24.2pm